3M's 7500 series respirator is more comfortable and durable than the 7000 series. Facepiece is made from an advanced silicone material to provide a softer feel on the face and help reduce red marks around the nose. Cool Flow™ exhalation valve helps make breathing easier and reduces heat and moisture buildup in the facepiece. Exhaled air is directed straight down to reduce the chances of fogging when wearing faceshields. Unique head harness design adjusts easily so you have the option of wearing the respirator in traditional (when in use) or drop-down mode (when not in use). Sizes are color-coded for easy identification. NIOSH approved. Specify size: S, M (fits 70% of men) or L from the selection box above.